/* Aracne2 — GitHub Pages showcase
   Minimal hand-written rules. Tailwind utilities (CDN) cover the rest. */

:root {
  /* Brand anchors */
  --inchiostro: #131A2A;
  --pergamena:  #ECE2C8;
  --rubrica:    #A62639;
  --rubrica-plus: #D44A5C;

  /* Restful surfaces — warm but light, modern feel */
  --surface:        #FAF7EE;   /* main page bg — softer than pergamena */
  --surface-soft:   #F2ECDC;   /* alternate band */
  --surface-card:   #FFFFFF;   /* elevated cards */
  --surface-tint:   rgba(166, 38, 57, 0.05);  /* faint rubrica wash */

  /* Slate ink scale — softer than pure inchiostro */
  --ink:        #1F2937;       /* main text */
  --ink-soft:   #4B5563;       /* secondary */
  --ink-mute:   #9CA3AF;       /* hints */

  /* Borders */
  --border:      rgba(31, 41, 55, 0.10);
  --border-soft: rgba(31, 41, 55, 0.06);
}

html { scroll-behavior: smooth; }

/* Anchor offsets so the sticky nav doesn't cover section headings */
section[id] { scroll-margin-top: 4.5rem; }

/* Site nav — solid bg + soft shadow, contrasts with any underlying section */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  color: var(--ink);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 14px -8px rgba(31, 41, 55, 0.20);
}
.site-nav-link {
  color: var(--ink-soft);
  transition: color 150ms ease;
}
.site-nav-link:hover { color: var(--ink); }

body {
  font-family: 'Lora', Georgia, serif;
  background: var(--surface);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, .display {
  font-family: 'Fraunces', 'Lora', Georgia, serif;
  font-optical-sizing: auto;
  letter-spacing: -0.01em;
}

/* Wordmark with italic 'a' — micro-detail from the brand book */
.wordmark {
  font-family: 'Lora', Georgia, serif;
  font-weight: 500;
}
.wordmark .a-italic {
  font-style: italic;
}

/* Hero gradient: kept as the single dark moment, but softened */
.hero-bg {
  background:
    radial-gradient(ellipse at top, rgba(212, 74, 92, 0.07) 0%, transparent 55%),
    linear-gradient(180deg, #1A2235 0%, #232C44 65%, #2A3450 100%);
}

/* Hero — TEI demo card on the right side */
.hero-demo {
  position: relative;
  margin-top: 2rem;
}
@media (min-width: 768px) {
  .hero-demo { margin-top: 0; }
}

.tei-card {
  position: relative;
  background: var(--pergamena);
  color: var(--inchiostro);
  border-radius: 0.75rem;
  padding: 1.85rem 1.5rem 1.5rem;
  box-shadow:
    0 22px 50px -16px rgba(0, 0, 0, 0.55),
    0 8px 18px -8px rgba(0, 0, 0, 0.35);
  transform: rotate(-0.5deg);
}

.tei-card-tab {
  position: absolute;
  top: -0.7rem;
  left: 1.4rem;
  background: var(--inchiostro);
  color: var(--pergamena);
  padding: 0.18rem 0.7rem;
  font-family: 'JetBrains Mono', 'Fira Code', Menlo, monospace;
  font-size: 0.7rem;
  border-radius: 0.3rem;
  letter-spacing: 0.02em;
  border: 1px solid rgba(212, 74, 92, 0.4);
}

.tei-snippet {
  margin: 0;
  font-family: 'JetBrains Mono', 'Fira Code', Menlo, monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  white-space: pre;            /* keep the formatted layout intact */
  overflow-x: auto;            /* if a line is too wide, scroll horizontally */
  color: rgba(19, 26, 42, 0.78);
  tab-size: 2;
}
.tei-snippet code { font-family: inherit; white-space: inherit; }
.tei-snippet .t { color: var(--rubrica); font-weight: 600; }
.tei-snippet .a { color: rgba(19, 26, 42, 0.55); }
.tei-snippet .v { color: #6e4f1e; }
.tei-snippet .hl {
  background: rgba(166, 38, 57, 0.14);
  border-radius: 3px;
  padding: 0.05em 0.2em;
  font-weight: 600;
  color: var(--ink);
}
@media (min-width: 480px) { .tei-snippet { font-size: 0.82rem; } }
@media (min-width: 768px) { .tei-snippet { font-size: 0.85rem; } }

/* Authority chip — floats off the top-right of the card */
.authority-chip {
  position: absolute;
  top: -0.85rem;
  right: -0.5rem;
  max-width: 12.5rem;
  background: var(--inchiostro);
  color: var(--pergamena);
  border: 1px solid rgba(212, 74, 92, 0.55);
  border-radius: 0.55rem;
  padding: 0.6rem 0.85rem;
  font-family: 'Lora', Georgia, serif;
  box-shadow: 0 14px 30px -8px rgba(0, 0, 0, 0.55);
  transform: rotate(2.5deg);
  text-align: left;
}
.authority-chip .chip-label {
  display: block;
  font-family: 'Fraunces', serif;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--rubrica-plus);
  text-transform: uppercase;
}
.authority-chip .chip-name {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--pergamena);
  margin-top: 0.18rem;
  line-height: 1.25;
}
.authority-chip .chip-id {
  display: block;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.7rem;
  color: rgba(236, 226, 200, 0.6);
  margin-top: 0.2rem;
}
@media (min-width: 768px) {
  .authority-chip { top: -1rem; right: -1.5rem; transform: rotate(3deg); }
}

/* Parchment-tinted placeholder shown when a screenshot is missing.
   The <img> stays visible; if it fails to load, the wrapper's
   background becomes the visible layer. */
.shot-placeholder {
  position: relative;
  background: var(--pergamena);
  border: 1px dashed rgba(19, 26, 42, 0.25);
}
.shot-placeholder::before {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fraunces', serif;
  font-style: italic;
  color: rgba(19, 26, 42, 0.45);
  font-size: 0.95rem;
  pointer-events: none;
}
.shot-placeholder img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
}
.shot-placeholder img[alt]:not([src=""]):after {
  /* if image fails the alt text shows; nothing to do here */
}

/* Architecture solution diagram (light surface) */
.diagram {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.diagram-tier {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 0.95rem 1.3rem;
  box-shadow: 0 1px 2px rgba(31, 41, 55, 0.04);
}
.diagram-tier.core {
  background: linear-gradient(180deg, #FFFFFF, var(--surface-tint));
  border-color: rgba(166, 38, 57, 0.30);
  box-shadow: 0 4px 14px -6px rgba(166, 38, 57, 0.18);
}
.tier-label {
  font-family: 'Fraunces', 'Lora', serif;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-shrink: 0;
  width: 8.5rem;
  color: var(--ink);
  line-height: 1.3;
}
.tier-cells {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  flex: 1;
}
.cell {
  display: inline-block;
  padding: 0.28rem 0.78rem;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  font-family: 'Lora', Georgia, serif;
  font-size: 0.78rem;
  color: var(--ink-soft);
}
.diagram-arrow {
  text-align: center;
  font-size: 0.95rem;
  color: var(--ink-mute);
  margin: 0.15rem 0;
  letter-spacing: 0.4em;
}
.cap {
  border-left: 2px solid rgba(166, 38, 57, 0.55);
  padding-left: 0.9rem;
}

/* Bundled extensions catalog (light surface) */
.ext-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  max-width: 64rem;
  margin: 0 auto;
  align-items: stretch;
}
@media (min-width: 640px)  { .ext-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .ext-grid { grid-template-columns: repeat(3, 1fr); } }

/* "Wide" group — Authorities — spans 2 cols on large screens (puzzle feel) */
@media (min-width: 1024px) {
  .ext-group.wide { grid-column: span 2; }
}

.ext-group {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-left: 3px solid rgba(166, 38, 57, 0.55);
  border-radius: 0.7rem;
  padding: 1.1rem 1.25rem 1.2rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 1px 2px rgba(31, 41, 55, 0.04);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}
.ext-group:hover {
  border-color: rgba(166, 38, 57, 0.55);
  box-shadow: 0 8px 24px -10px rgba(166, 38, 57, 0.18);
  transform: translateY(-2px);
}

.ext-cat {
  font-family: 'Fraunces', 'Lora', serif;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.7rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--border);
}
.ext-count {
  margin-left: auto;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.65rem;
  background: var(--surface-tint);
  color: var(--rubrica);
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.ext-blurb {
  font-family: 'Lora', Georgia, serif;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 0.85rem;
}
.ext-blurb code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.78em;
  color: var(--rubrica);
  background: var(--surface-tint);
  padding: 0.05em 0.3em;
  border-radius: 3px;
}

/* Authority pills */
.ext-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}
.ext-pill {
  display: inline-block;
  padding: 0.28rem 0.78rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: 'Lora', Georgia, serif;
  font-size: 0.78rem;
  color: var(--ink);
  white-space: nowrap;
}

/* Plugin entries (name + description on stacked rows) */
.ext-items {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.ext-items li {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding-left: 0.7rem;
  border-left: 2px solid rgba(166, 38, 57, 0.28);
}
.ext-name {
  font-family: 'Fraunces', 'Lora', serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
}
.ext-desc {
  font-family: 'Lora', Georgia, serif;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--ink-soft);
}
.ext-desc code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  color: var(--rubrica);
  background: var(--surface-tint);
  padding: 0.05em 0.3em;
  border-radius: 3px;
}
.ext-foot {
  font-family: 'Lora', Georgia, serif;
  font-size: 0.72rem;
  font-style: italic;
  color: var(--ink-mute);
  margin-top: 0.85rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--border-soft);
}

@media (max-width: 640px) {
  .diagram-tier {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.55rem;
    padding: 0.85rem 1rem;
  }
  .tier-label { width: auto; }
}

/* Hover on feature cards */
.feature-card {
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -12px rgba(19, 26, 42, 0.25);
}

/* CTA buttons in hero */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}
.btn-primary {
  background: var(--rubrica);
  color: var(--pergamena);
}
.btn-primary:hover { background: var(--rubrica-plus); }

.btn-secondary {
  background: transparent;
  color: var(--pergamena);
  border: 1px solid rgba(236, 226, 200, 0.4);
}
.btn-secondary:hover {
  border-color: var(--pergamena);
  background: rgba(236, 226, 200, 0.08);
}

/* Tech stack ribbon */
.stack-pill {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(19, 26, 42, 0.06);
  font-family: 'Lora', Georgia, serif;
  font-size: 0.875rem;
  color: var(--inchiostro);
}

/* Footer */
footer a {
  color: var(--rubrica);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
footer a:hover { color: var(--rubrica-plus); }

/* Release badge in the hero — subtle, on-brand, no shouting */
.release-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  background: rgba(236, 226, 200, 0.10);
  border: 1px solid rgba(236, 226, 200, 0.30);
  color: var(--pergamena);
  font-family: 'Lora', Georgia, serif;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.release-badge:hover {
  background: rgba(236, 226, 200, 0.18);
  border-color: rgba(236, 226, 200, 0.55);
}
.release-badge .rb-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: #34d399;          /* fresh green dot for "production" */
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.25);
}
.release-badge .rb-tag {
  font-family: 'Fraunces', 'Lora', Georgia, serif;
  font-weight: 600;
}
.release-badge .rb-sep {
  opacity: 0.45;
}
.release-badge .rb-date {
  opacity: 0.75;
}

/* Inline rubrica-coloured link inside body copy (Production-ready section) */
.link-rubrica {
  color: var(--rubrica);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.link-rubrica:hover { color: var(--rubrica-plus); }

/* ──────────────────────────────────────────────────────────────────
   Screenshot lightbox — click any image inside #screenshots to open
   the full-resolution version in a centred overlay.
   ────────────────────────────────────────────────────────────────── */
#screenshots .shot-placeholder img {
  cursor: zoom-in;
  transition: transform 0.25s ease;
}
#screenshots .shot-placeholder:hover img {
  transform: scale(1.015);
}

.lb-overlay {
  position: fixed;
  inset: 0;
  background: rgba(19, 26, 42, 0.92);   /* inchiostro w/ heavy alpha */
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
  padding: 2rem;
}
.lb-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.lb-overlay img {
  max-width: min(96vw, 1600px);
  max-height: 92vh;
  object-fit: contain;
  border-radius: 0.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  cursor: zoom-out;
}
.lb-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: rgba(236, 226, 200, 0.10);
  border: 1px solid rgba(236, 226, 200, 0.30);
  color: var(--pergamena);
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.lb-close:hover {
  background: rgba(236, 226, 200, 0.22);
  border-color: rgba(236, 226, 200, 0.55);
}
body.lb-open { overflow: hidden; }